Hinge.



N. B. HURD.

HINGE.

APPLICATION FILED SEPT. 20, 1915.

133,1 1%. Patented Oct. 31,1916.

Ian A.

NORMAN IB. HURD, OF NEW BRITAIN, CONNECTICUT,

ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OF NEW BRITAIN,CONNECTICUT, A CORPORATION OF CONNECTICUT.

HINGE.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Application filed September 20, 1915. Serial No. 51,519.

To all whom it may concern:

Be it known that I, NORMAN B. Home, a

citizen of the United States of America, residing at New Britain,Connecticut, have invented a new and useful Hinge, of which thefollowing is a specification.

This invention relates particularly to door hinges and the aim of theinvention is to provide simple and effective means for preventingseparation of thehinge leaves when the hinge occupies a given position,as when the door to which it is applied, is closed. I I

In carrying my invention intoeficct, I employ a locking device which ina pre determined position of the hinge leaves or members is held by oneof the hinge leaves in looking engagement with the hinge pin whichpivotally connects, the two hinge leaves, thereby preventing withdrawalof the hinge pin. In one embodiment of the invention this locking deviceis in the form of an annular washer which is mounted nonrotatably on oneof the hinge leaves and is forced by the other hinge leaf into lockingengagement with a shoulder on the hinge pin.

The details of structure will appear more clearly as the specificationproceeds.

The accompanying drawing illustrates the invention embodied in severalpractical and preferred forms, but it will be understood that changesand modifications may be made without departing from the true spirit andscope of the invention.

Figure 1, is a View in side elevation of a hinge having my inventionembodied therein. Fig. 2, is a horizontal. sectional view takensubstantially on the plane of the line 22 of Fig. 1 and showing thehinge applied to the mounting of a door, the door in this case being inthe open position. Fig. 3, is a view similar to Fig. 2 with the doorshown in the closed position and the locking device actuated to preventwithdrawal of the hinge pin. Fig. 4, is a detail perspective view of thelocking washers and the portion of the hinge pin with which it engages.

The two members or leaves of the hinge illustrated are designated 7 and8 and the hinge pin which pivotally connects them is designated 9. Thetwo hinge members are provided at their meeting edges with interfittingor complementary lugs or portions 7 and 8 having bores 10 which registerwhen the parts are assembled to receive the hinge pin. h

The hinge pin locking device is designated 15 and the same consists inthe first form illustrated of an annular washer formed with a bore 16 toreceive the hinge pin and arranged to be forced by one of the hingeleaves into interlocking engagement with a shoulder 17 on the hinge pin.This locking washer is seated in an opening 18 surrounding the hinge pinbore. This seat for the locking washer is formed in the present instanceby simply cutting a slot in the intermediate hinge loop or lug 8,intersecting the hinge pin bore therethrough and just wide enough toreceive the washer. The washer is held against rotation by suitablemeans,-in the present instance by providing it with a projecting pin orlug 19 engaging in a socket 20 in the hinge leaf 8.

The locking washer is forced or held in interlocked engagement with theshoulder on the hinge pin by reason of a portion 21 on the hinge leaf 7engaging with a protruding portion 22 of the washer so as to displacethe washer laterally and thereby hold it interlocked with the shoulderof the hinge pin. The protruding portion 22 of the locking washer iseccentrically disposed with respect to the bore 16 so that thisdisplacement will take place and the disposition of this eccentricprojecting portion 22 determines the point in the position of the hingeat which the hinge pin will be locked against withdrawal.

In the illustration the hinge is shown applied to the support of a door,the leaf 7 being shown secured to the door 25 and the leaf 8 secured tothe door casing 26. Also the parts are so designed that the lockingwasher will lock the hinge pin when the door is in the closed position.In Fig. 2 the door stands open and the hinge pin can, if desired, bewithdrawn. The locking washer in this position has enough freedom ofmovement to allow it, if not already alined with the hinge pin, to slideto one side or the other enough to bring the bore therein intoconcentric relation with the hinge pin. This is the condition indicatedin this View. As the door swings to the closed position as indicated inFig. 3 the actuating portion 21 on the hinge leaf 7 rides over theeccentric portion 22 of the washer, displacing the washer laterally andforcing it into locked engagement over the shoulder 17 on the hinge pin.It will be clear that in this position of the parts the hinge pin cannotbe withdrawn. Also it will be seen that in this locked position thedevice which holds the locking washer against rotation cannot be reachedfor the purpose of freeing the washer so that it can be rotated tounlock the hinge pin.

The locking shoulder on the hinge pin may be provided in various waysand in the present disclosure the same is provided by simply cutting anannular groove-way 27 in the hinge pin at a point in line with thelocking device.

It will be clear from the foregoing that my invention provides simpleand very effective means for locking the hinge parts against separationand which is inexpensive and can be readily manufactured.

What I claim is 1. In a hinge construction, hinge leaves havingregistering bores for a hinge pin, a hinge pin engaged in said bores,one of said leaves having an opening therein surrounding the hinge pinbore, said hinge pin having a shoulder in line with said opening and alocking washer held against rotation in said opening, said washer havinga bore to receive the hinge pin and provided with a projecting portioneccentric to said bore to be engaged by the other one of the hingeleaves whereby said washer willbe forced by said other hinge leaf intolocking engagement with the shoulder on the hinge pin.

2. In a hinge construction, hinge leaves having registering bores for ahinge pin, a

hinge pin engaged in said bores, one of said leaves having an openingtherein surrounding the hinge pin bore and a keying socket at one sideof said opening, a shoulder on the hinge pin in line with said opening,a locking washer seated in said opening provided with a bore to registerwith the bores in the leaves, a lug on one edge of said washer engagingin the keying socket to hold the washer against rotation, said washerhaving an exposed portion eccentric to the bore therein and projectinginto the path of movement of the other one of the hinge leaves wherebysaid washer will be forced by said other hinge leaf into lockedengagement with the shoulder on the hinge pin.

NORMAN B. HURD.

Copies of this 'patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. Q.

